CN106125356A - The proofreading method of a kind of liquid crystal indicator brightness and device - Google Patents
The proofreading method of a kind of liquid crystal indicator brightness and device Download PDFInfo
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- CN106125356A CN106125356A CN201610475155.XA CN201610475155A CN106125356A CN 106125356 A CN106125356 A CN 106125356A CN 201610475155 A CN201610475155 A CN 201610475155A CN 106125356 A CN106125356 A CN 106125356A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
Abstract
The present invention discloses the proofreading method of a kind of liquid crystal indicator brightness, and described method includes: obtain the brightness initial value of liquid crystal indicator；Calculate the brightness optimum of liquid crystal indicator；Judge whether brightness optimum is optimization；If the brightness optimum calculated is optimization, then optimum is written in liquid crystal indicator；Judge that the write value of write is the most correct, if correctly, then terminate.Thus greatly reduce write and the situation of substandard products occurs, improve the yields of production, improve total production efficiency, save manpower and training funds, significantly reduce manufacturing cost, be additionally present of repeatedly step detection, improve the stability of manufacture.
Description
Technical field
The present invention relates to proofread technical field, in particular, relate to the proofreading method of a kind of liquid crystal indicator brightness
And device.
Background technology
The brightness of liquid crystal indicator is important parameter, and brightness directly influences the state of people's viewing, a lot of liquid crystal
The brightness dispatched from the factory of display device, the LCDs of such as computer, hold the LCDs of game machine, some remote controllers
LCDs etc., the brightness of dispatching from the factory of these display screens often fixes, and therefore these brightness needs reasonably to arrange, in order to
User uses.
At present, when using the brightness of liquid crystal indicator luminance test instrument test fluid crystal device, it is common that Yuan Gongtong
The numerical value crossing observation tester carrys out the parameter of manual adjustable liquid crystal display display device, after confirming that parameter is optimum, is written into
In liquid crystal indicator.This control method step is various, and owing to synthesis steps is manual operation, there is erroneous judgement and behaviour by mistake
Make risk, and the professional skill of employee is required higher.
Therefore, need badly a kind of in hgher efficiency, the proofreading method of relatively reliable liquid crystal indicator brightness and device.
Summary of the invention
The technical problem to be solved is to provide a kind of liquid crystal indicator brightness in hgher efficiency, relatively reliable
Proofreading method and device.
It is an object of the invention to be achieved through the following technical solutions:
A kind of proofreading method of liquid crystal indicator brightness, described method includes:
Obtain the brightness initial value of liquid crystal indicator；
Calculate the brightness optimum of liquid crystal indicator；
Judge whether brightness optimum is optimization；
If the brightness optimum calculated is optimization, then optimum is written in liquid crystal indicator；
Judge that the write value of write is the most correct, if correctly, then terminate.
Further, also included before the step of the brightness initial value of described acquisition liquid crystal indicator,
Initialize liquid crystal indicator；
Confirm that liquid crystal indicator duty is the most normal；
If liquid crystal indicator duty is normal, then brightness impression unit is focused with described liquid crystal module.
Further, also include after the step of the brightness optimum of described calculating liquid crystal indicator,
The brightness value of test fluid crystal device.
Further, described brightness initial value is by using the bright dark change of silicon cell detection liquid crystal display surface
Obtain；And by operational amplifier, luminance signal be amplified and by wave filter, luminance signal be filtered, generate bright
Degree analogue signal, is converted to direct current signal by analog-digital converter by brightness analogue signal.
Further, ARM chip is used to pass through GPIO mouth as the main control chip of brightness impression unit, described main control chip
It is connected with liquid crystal indicator；Described main control chip is connected with hoistable platform by GPIO mouth, and described hoistable platform is used for adjusting
Brightness impression unit and the distance of liquid crystal indicator.
A kind of verifying unit of liquid crystal indicator brightness, including:
Main control chip, the hoistable platform being connected with main control chip, the brightness impression unit of test fluid crystal device, with bright
The operational amplifier that degree sensing unit is connected, the wave filter being connected with operational amplifier, the analog-digital converter being connected with wave filter,
Described main control chip is also connected with liquid crystal indicator, and wherein, described main control chip includes:
Acquisition module, for obtaining the brightness initial value of liquid crystal indicator；
Processing module, for calculating the brightness optimum of liquid crystal indicator；
First test module, is used for judging whether brightness optimum is optimization；
Writing module, if the brightness optimum calculated is optimization, then for optimum is written to liquid crystal indicator
In；
Second test module, the most correct for judging the write value of write, if correctly, then terminate.
Further, described main control chip also includes:
Initialization module, is used for initializing liquid crystal indicator；
LCD testing, is used for confirming that liquid crystal indicator duty is the most normal；
Focusing module, if normal for liquid crystal indicator duty, then by brightness impression unit and described liquid crystal mould
Group is focused；
Wherein, described Focusing module is connected with described acquisition module.
Further, described main control chip also includes:
Brightness detection module, for the brightness value of test fluid crystal device；
Wherein, described brightness detection module is connected with processing module and the first test module.
Further, described brightness impression unit is silicon cell, and luminance signal can be put by described operational amplifier
Greatly and by wave filter, luminance signal is filtered, generates brightness analogue signal, by analog-digital converter by brightness simulation letter
Number be converted to direct current signal.
Further, described main control chip is ARM chip, and described main control chip passes through GPIO mouth and liquid crystal indicator phase
Even；Described main control chip is connected with hoistable platform by GPIO mouth, and described hoistable platform is used for adjusting brightness impression unit and liquid
The distance of crystal device.
Use the proofreading method of the liquid crystal indicator brightness of the present invention, it is possible to obtained by brightness impression unit testing
The brightness value of liquid crystal indicator, is then sent to main control chip by this numerical value, and main control chip is getting brightness initial value
After, will carry out being calculated the brightness optimum of liquid crystal indicator, then, master control according to the numerous brightness initial values obtained
Chip will judge whether brightness optimum is optimization, just calculated optimum is written to liquid crystal if optimization
In display device, afterwards, main control chip can detect from liquid crystal indicator the brightness optimum of write whether be calculated
Optimum is identical, if identical, the most just completes this check and correction, if the brightness optimum of detection write be calculated optimal
Value differs, then can re-write, until write value is identical with calculated optimum, can complete this check and correction,
So it is possible not only to be completed the brightness check and correction of liquid crystal indicator by automation equipment, and after write brightness optimum, also
Carry out detecting the step of write value, thus greatly reduce write and the situation of substandard products occurs, improve the yields of production, carry
High production efficiency always, saves manpower and training funds, significantly reduces manufacturing cost, be additionally present of repeatedly step detection, carry
The high stability manufactured.
Accompanying drawing explanation
Fig. 1 is the flow chart of the proofreading method of the liquid crystal indicator brightness of the embodiment of the present invention one；
Fig. 2 is the flow chart of the proofreading method of the liquid crystal indicator brightness of the embodiment of the present invention two；
Fig. 3 is the schematic diagram of the verifying unit of the liquid crystal indicator brightness of the embodiment of the present invention three；
Fig. 4 is the schematic diagram of the main control chip of the embodiment of the present invention three；
Fig. 5 is the schematic diagram of the hoistable platform of the embodiment of the present invention three.
Wherein: 10, main control chip, 11, acquisition module, 12, processing module, the 13, first test module, 14, writing module,
15, second test module, 16, write detection module.17, brightness detection module, 18, initialization module, 19, liquid crystal test mould
Block, 20, Focusing module, 31, hoistable platform, 32, contrast sensing unit, 33, operational amplifier, 34, wave filter, 35, modulus
Transducer.
Detailed description of the invention
The invention will be further described with preferred embodiment below in conjunction with the accompanying drawings.
Embodiment one
As it is shown in figure 1, the proofreading method of a kind of liquid crystal indicator brightness, described method includes:
S100, obtains the brightness initial value of liquid crystal indicator；
S200, calculates the brightness optimum of liquid crystal indicator；
S300, it is judged that whether brightness optimum is optimization；
S400, if the brightness optimum calculated is optimization, is then written to optimum in liquid crystal indicator；
S500, it is judged that the write value of write is the most correct, if correctly, then terminates.
In the present invention, owing to method includes, S100 obtains the brightness initial value of liquid crystal indicator；S200 calculates liquid crystal
The brightness optimum of showing device；S300, it is judged that whether brightness optimum is optimization；S400, if the brightness optimum calculated is
Optimization, then be written to optimum in liquid crystal indicator；S500 judges that the write value of write is the most correct, if correctly, then
Terminate.In this manner it is possible to obtained the brightness value of liquid crystal indicator by brightness impression unit testing, then this numerical value is sent out
Giving main control chip, main control chip, after getting brightness initial value, will be counted according to the numerous brightness initial values obtained
Calculating the brightness optimum obtaining liquid crystal indicator, then, main control chip will judge whether brightness optimum is optimization, as
Calculated optimum is just written in liquid crystal indicator by fruit for optimization, and afterwards, main control chip can be from liquid crystal display
Device detects the brightness optimum of write whether with to be calculated optimum identical, if identical, the most just complete this
Check and correction, if the brightness optimum of detection write differs with being calculated optimum, then can re-write, until write value
Identical with calculated optimum, this check and correction can be completed, be so possible not only to be completed liquid crystal display by automation equipment
The brightness check and correction of device, and after write brightness optimum, also carry out detecting the step of write value, thus greatly reduce
There is the situation of substandard products in write, improves the yields of production, improves total production efficiency, saves manpower and training funds,
Significantly reduce manufacturing cost, be additionally present of repeatedly step detection, improve the stability of manufacture.Certainly, if calculate brightness
Optimum is not optimization, then return to continue in the step of the brightness optimum that S200 calculates liquid crystal indicator
Calculating, meeting optimized brightness optimum until calculating.
It addition, in the present embodiment, if being optimization in the brightness optimum that will calculate, then optimum is written to liquid crystal
In showing device after the step of S400, the most in steps, detection is written to the write value of liquid crystal indicator, thus facilitates S500
Judgement step.
According to an example in the present embodiment, in the step of the brightness initial value S100 of described acquisition liquid crystal indicator
The most also include,
Initialize liquid crystal indicator；
Confirm that liquid crystal indicator duty is the most normal；
If liquid crystal indicator duty is normal, then brightness impression unit is focused with described liquid crystal module.
In this manner it is possible to first the duty of liquid crystal indicator was carried out before liquid crystal indicator is proofreaded
Confirm, look at whether liquid crystal indicator can normally work, it is to avoid cause the mistake of check and correction because of the problem of liquid crystal indicator
Lose, improve the efficiency of check and correction, confirm that the duty of liquid crystal indicator can be by the work electricity of test fluid crystal device
The parameters such as pressure, electric current, brightness judge.
According to another example in the present embodiment, in the step of brightness optimum S102 of described calculating liquid crystal indicator
Also include after rapid,
The brightness value of test fluid crystal device.
So, before calculating brightness optimum, can again obtain the brightness value of liquid crystal indicator, thus by more
Many brightness values calculate, and increase sampling sample, improve the computational accuracy of brightness optimum.
According to another example in the present embodiment, described brightness initial value is by using silicon cell detection liquid crystal display
The bright dark change of apparatus surface obtains；And be amplified and pass through wave filter brightness is believed to luminance signal by operational amplifier
Number it is filtered, generates brightness analogue signal, by analog-digital converter, brightness analogue signal is converted to direct current signal.Silicon photoelectricity
The cost in pond is relatively low, and test accuracy is higher, is easy to use, operational amplifier and wave filter can be to signal at
Manage, be filtered, produce clean available analogue signal, facilitate the use of signal, then changed by ADC (analog-digital converter)
Brightness analogue signal is converted to direct current signal, master control digital signal is processed and computing, in order to identify present intensity
Grade and determine whether optimization value.
According to another example in the present embodiment, use ARM chip is as the main control chip of brightness impression unit, described
Main control chip is connected with liquid crystal indicator by GPIO mouth；Described main control chip is connected with hoistable platform by GPIO mouth, institute
State hoistable platform for adjusting the distance of brightness impression unit and liquid crystal indicator.So can improve the effect of data transmission
Rate, it is ensured that the stability of data transmission and the accuracy of check and correction.Wherein, GPIO is universal input/output, or bus extender,
Industrial standard I2C, SMBus or SPI interface is utilized to simplify the extension of I/O mouth.When microcontroller or chipset do not have enough
I/O port, or when system needs use far-end serial communication or control, GPIO product can provide extra control and supervision
Function.
In the present embodiment, use ARM chip as the main control chip of correction instrument, drive liquid crystal indicator to show, and lead to
The working condition of liquid crystal indicator is read, it is ensured that liquid crystal indicator working properly when crossing GPIO cause for gossip.
Main control chip controls hoistable platform by GPIO mouth, automatically adjust brightness impression unit and LCDs away from
From, carry the accuracy of bright degree test data.As main control chip confirms that liquid crystal indicator the most normally works, hoistable platform will be from
Move and lift, terminate check and correction flow process.
Use the bright dark change of silicon cell detection liquid crystal display surface, generate the initial value of brightness, pass through computing
Signal is amplified and is filtered signal by wave filter by amplifier, produces clean available analogue signal.
By ADC conversion, brightness analogue signal is converted to direct current signal, master control digital signal is processed and transport
Calculate, in order to identify current brightness level and to determine whether optimization value.
The optimization parameter that computing is drawn by main control chip solidifies in liquid crystal indicator, and is confirmed solid by GPIO mouth
Dissolve the parameter in liquid crystal indicator the most correct.And show that " passing through " or " not passing through " picture points out operator.
Main control chip confirms that step controls hoistable platform lifting by GPIO mouth after terminating, and represents that step the most all terminates,
Prompting operator's power-off.
The present embodiment automatically adjusts brightness impression unit with LCDs distance by Pneumatic type lifting platform, increases
Add the accuracy of luminance test data, and test data are supplied to master control analysis by ADC (analog-digital converter) conversion, master control
Automatically adjusting the parameter of LCDs after completing data analysis, and calculate brightness optimum, master control is solid by optimum parameter
Dissolve in LCDs, solidified rear master control and again brought up the parameter of LCDs and be confirmed whether that solidification is correct, promoted
Stability.This set invention everything is completed by instrument, saves manpower and training funds, significantly reduces manufacturing cost, additionally
There is repeatedly step detection, improve the stability of manufacture.
Additionally, in the present embodiment, use silicon cell as brightness impression unit, it is provided that the initial value of brightness.Use ADC
Transducer carries out digital-to-analogue conversion to brightness initial value, provides useful signal for master control.The master control duty to LCDs
Confirm, it is ensured that the duty of LCDs is normal.Luminance signal is processed by master control, computing, debugs and exports.
The parameter being solidificated in LCDs is transferred and confirms by master control, it is ensured that debug successfully.Use Pneumatic type lifting platform,
Automatically the distance of brightness impression unit and LCDs is adjusted, it is ensured that the accuracy of luminance test data.Pass through main control chip
GPIO mouth controls the switch of electromagnetic valve, it is achieved programme-control Pneumatic type lifting platform.
Embodiment two
As in figure 2 it is shown, the present embodiment discloses the proofreading method of a kind of liquid crystal indicator brightness, it is believed that be to enforcement
Being expanded on further and refining of example one, shown method includes:
S70, initializes liquid crystal indicator；
S80, confirms that liquid crystal indicator duty is the most normal；
S90, if liquid crystal indicator duty is normal, then it is right brightness impression unit and described liquid crystal module to be carried out
Burnt.
S100, obtains the brightness initial value of liquid crystal indicator；
S200, calculates the brightness optimum of liquid crystal indicator；
S201, the brightness value of test fluid crystal device.
S300, it is judged that whether brightness optimum is optimization；
S400, if the brightness optimum calculated is optimization, is then written to optimum in liquid crystal indicator；
S401, detection is written to the write value of liquid crystal indicator；
S500, it is judged that the write value of write is the most correct, if correctly, then terminates.
Wherein, in step S90, if liquid crystal indicator duty is not normal, then will return to beginning state, right
New liquid crystal indicator initializes, and detects the duty of new liquid crystal indicator；In step S300, if brightness is
Good value is not optimization, then return in step S200, again calculates the brightness optimum of liquid crystal indicator；In step
In rapid S500, if judging, the write value of write is not correct, then return in step S400, to liquid crystal indicator
Re-write.
The proofreading method of this liquid crystal indicator will be proofreaded by carrying out the most functions reliably and efficiently, improves correction efficiency.
Embodiment three
As shown in Figures 3 to 5, the present invention discloses the verifying unit of a kind of liquid crystal indicator brightness, including:
Main control chip 10, the hoistable platform 31 being connected with main control chip, the brightness impression list of test fluid crystal device 30
Unit 32, the operational amplifier 33 being connected with brightness impression unit 32, the wave filter 34 being connected with operational amplifier, with wave filter 34
The analog-digital converter 35 being connected, described main control chip 10 is also connected with liquid crystal indicator 30, and wherein, described main control chip 10 wraps
Include:
Acquisition module 11, for obtaining the brightness initial value of liquid crystal indicator；
Processing module 12, for calculating the brightness optimum of liquid crystal indicator；
First test module 13, is used for judging whether brightness optimum is optimization；
Writing module 14, if the brightness optimum for calculating is optimization, is then written to liquid crystal display dress by optimum
In putting；
Second test module 15, the most correct for judging the write value of write, if correctly, then terminate.
In this manner it is possible to obtained the brightness value of liquid crystal indicator 30 by brightness impression unit 32 test, then by this
Individual numerical value is sent to main control chip 10, the acquisition module 11 of main control chip 10 after getting brightness initial value, processing module 12
Will carry out being calculated the brightness optimum of liquid crystal indicator, then the first test according to the numerous brightness initial values obtained
Module 13 will judge whether brightness optimum is optimization, if optimization then writing module 14 just by calculated
Good value is written in liquid crystal indicator, and afterwards, the second test module 15 of main control chip 10 can be examined from liquid crystal indicator
Survey the brightness optimum of write whether with to be calculated optimum identical, if identical, the most just complete this check and correction, if inspection
Survey write brightness optimum differ with being calculated optimum, then can re-write, until write value with calculate
The optimum arrived is identical, can complete this check and correction, so be possible not only to be completed the bright of liquid crystal indicator by automation equipment
Degree check and correction, and after write brightness optimum, also carry out detecting the step of write value, thus greatly reduce write and occur
The situation of substandard products, improves the yields of production, improves total production efficiency, saves manpower and training funds, significantly reduces
Manufacturing cost, is additionally present of repeatedly step detection, improves the stability of manufacture.
First test module 13 can be also used for, if if the brightness optimum calculated is not optimization, then will return
Continuing to calculate in processing module 12 in the brightness optimum of liquid crystal indicator, meeting optimized brightness until calculating
Good value.
It addition, in the present embodiment, this device is additionally provided with write detection module 16, said write detection module 16 is positioned at described
Between writing module 14 and the second test module 15, facilitate the judgement of the second test module 15.
According to another example in the present embodiment, described main control chip also includes:
Brightness detection module 17, for the brightness value of test fluid crystal device；Described brightness detection module 17 is positioned at place
Between reason module 12 and the first test module 13.
According to an example in the present embodiment, described main control chip 10 also includes:
Initialization module 18, is used for initializing liquid crystal indicator；
LCD testing 19, is used for confirming that liquid crystal indicator duty is the most normal；
Focusing module 20, if normal for liquid crystal indicator duty, then by brightness impression unit and described liquid crystal
Module is focused；
Wherein, described Focusing module is connected with described acquisition module.In this manner it is possible to liquid crystal indicator is being carried out school
To the most first the duty of liquid crystal indicator being confirmed, look at whether liquid crystal indicator can normally work, keep away
Exempt to cause because of the problem of liquid crystal indicator the failure of check and correction, improve the efficiency of check and correction, confirm the work of liquid crystal indicator
State can be judged by parameters such as the running voltage of test fluid crystal device, electric current, brightness.
Wherein, described adjusting module is connected with said write test module.So, before calculating brightness optimum, can
Again to obtain the brightness value of liquid crystal indicator, thus calculated by more brightness value, increase sampling sample, carry
The computational accuracy of high brightness optimum.
According to another example in the present embodiment, described brightness impression unit is silicon cell, described operational amplifier
Luminance signal can be amplified and by wave filter, luminance signal is filtered, generate brightness analogue signal, pass through modulus
Brightness analogue signal is converted to direct current signal by transducer.The cost of silicon cell is relatively low, and test accuracy is higher, uses
Convenient, signal can be processed, be filtered by operational amplifier and wave filter, produces clean available analogue signal, side
The use of notelet number, is then converted to direct current signal by brightness analogue signal, by master control pair by ADC (analog-digital converter) conversion
Digital signal carries out processing and computing, in order to identify current brightness level and to determine whether optimization value.
According to another example in the present embodiment, described main control chip is ARM chip, and described main control chip passes through GPIO
Mouth is connected with liquid crystal indicator；Described main control chip is connected with hoistable platform by GPIO mouth, and described hoistable platform is used for adjusting
Whole brightness impression unit and the distance of liquid crystal indicator.So can improve the efficiency of data transmission, it is ensured that data transmit
Stability and the accuracy of check and correction.
As it is shown in figure 5, in the present embodiment, utilization is that hoistable platform 31 realizes controlling brightness impression unit 32 and liquid crystal
Distance between showing device 30, hoistable platform 31 is additionally provided with operational amplifier 33 and wave filter 34, and is also positioned at
Main control chip 10 bottom hoistable platform 31.
In the present embodiment, use ARM chip as the main control chip of correction instrument, drive liquid crystal indicator to show, and lead to
The working condition of liquid crystal indicator is read, it is ensured that liquid crystal indicator working properly when crossing GPIO cause for gossip.
Main control chip controls hoistable platform by GPIO mouth, automatically adjust brightness impression unit and LCDs away from
From, carry the accuracy of bright degree test data.As main control chip confirms that liquid crystal indicator the most normally works, hoistable platform will be from
Move and lift, terminate check and correction flow process.
Use the bright dark change of silicon cell detection liquid crystal display surface, generate the initial value of brightness, pass through computing
Signal is amplified and is filtered signal by wave filter by amplifier, produces clean available analogue signal.
By ADC conversion, brightness analogue signal is converted to direct current signal, master control digital signal is processed and transport
Calculate, in order to identify current brightness level and to determine whether optimization value.
The optimization parameter that computing is drawn by main control chip solidifies in liquid crystal indicator, and is confirmed solid by GPIO mouth
Dissolve the parameter in liquid crystal indicator the most correct.And show that " passing through " or " not passing through " picture points out operator.
Main control chip confirms that step controls hoistable platform lifting by GPIO mouth after terminating, and represents that step the most all terminates,
Prompting operator's power-off.
The present embodiment automatically adjusts brightness impression unit with LCDs distance by Pneumatic type lifting platform, increases
Add the accuracy of luminance test data, and test data are supplied to master control analysis by ADC (analog-digital converter) conversion, master control
Automatically adjusting the parameter of LCDs after completing data analysis, and calculate brightness optimum, master control is solid by optimum parameter
Dissolve in LCDs, solidified rear master control and again brought up the parameter of LCDs and be confirmed whether that solidification is correct, promoted
Stability.This set invention everything is completed by instrument, saves manpower and training funds, significantly reduces manufacturing cost, additionally
There is repeatedly step detection, improve the stability of manufacture.
Additionally, in the present embodiment, use silicon cell as brightness impression unit, it is provided that the initial value of brightness.Use ADC
Transducer carries out digital-to-analogue conversion to brightness initial value, provides useful signal for master control.The master control duty to LCDs
Confirm, it is ensured that the duty of LCDs is normal.Luminance signal is processed by master control, computing, debugs and exports.
The parameter being solidificated in LCDs is transferred and confirms by master control, it is ensured that debug successfully.Use Pneumatic type lifting platform,
Automatically the distance of brightness impression unit and LCDs is adjusted, it is ensured that the accuracy of luminance test data.Pass through main control chip
GPIO mouth controls the switch of electromagnetic valve, it is achieved programme-control Pneumatic type lifting platform.
Above content is to combine concrete preferred implementation further description made for the present invention, it is impossible to assert
Being embodied as of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of present inventive concept, it is also possible to make some simple deduction or replace, all should be considered as belonging to the present invention's
Protection domain.
Claims (10)
1. the proofreading method of a liquid crystal indicator brightness, it is characterised in that described method includes:
Obtain the brightness initial value of liquid crystal indicator；
Calculate the brightness optimum of liquid crystal indicator；
Judge whether brightness optimum is optimization；
If the brightness optimum calculated is optimization, then optimum is written in liquid crystal indicator；
Judge that the write value of write is the most correct, if correctly, then terminate.
The proofreading method of a kind of liquid crystal indicator brightness the most according to claim 1, it is characterised in that in described acquisition
Also include before the step of the brightness initial value of liquid crystal indicator,
Initialize liquid crystal indicator；
Confirm that liquid crystal indicator duty is the most normal；
If liquid crystal indicator duty is normal, then brightness impression unit is focused with described liquid crystal module.
The proofreading method of a kind of liquid crystal indicator brightness the most according to claim 1, it is characterised in that in described calculating
Also include after the step of the brightness optimum of liquid crystal indicator,
The brightness value of test fluid crystal device.
The proofreading method of a kind of liquid crystal indicator brightness the most according to claim 1, it is characterised in that at the beginning of described brightness
Initial value obtains by using the bright dark change of silicon cell detection liquid crystal display surface；And by operational amplifier to brightness
Signal is amplified and is filtered luminance signal by wave filter, generates brightness analogue signal, will by analog-digital converter
Brightness analogue signal is converted to direct current signal.
The proofreading method of a kind of liquid crystal indicator brightness the most according to claim 1, it is characterised in that use ARM core
Sheet is connected with liquid crystal indicator by GPIO mouth as the main control chip of brightness impression unit, described main control chip；Described master
Control chip is connected with hoistable platform by GPIO mouth, and described hoistable platform is used for adjusting brightness impression unit and liquid crystal indicator
Distance.
6. the verifying unit of a liquid crystal indicator brightness, it is characterised in that including:
Main control chip, the hoistable platform being connected with main control chip, the brightness impression unit of test fluid crystal device, with brightness impression
Answer unit be connected operational amplifier, the wave filter being connected with operational amplifier, the analog-digital converter being connected with wave filter, described
Main control chip is also connected with liquid crystal indicator, and wherein, described main control chip includes:
Acquisition module, for obtaining the brightness initial value of liquid crystal indicator；
Processing module, for calculating the brightness optimum of liquid crystal indicator；
First test module, is used for judging whether brightness optimum is optimization；
Writing module, if the brightness optimum calculated is optimization, then for optimum being written in liquid crystal indicator；
Second test module, the most correct for judging the write value of write, if correctly, then terminate.
The verifying unit of a kind of liquid crystal indicator brightness the most according to claim 6, it is characterised in that described master control core
Sheet also includes:
Initialization module, is used for initializing liquid crystal indicator；
LCD testing, is used for confirming that liquid crystal indicator duty is the most normal；
Focusing module, if normal for liquid crystal indicator duty, then enters brightness impression unit with described liquid crystal module
Row focusing；
Wherein, described Focusing module is connected with described acquisition module.
The verifying unit of a kind of liquid crystal indicator brightness the most according to claim 6, it is characterised in that described master control core
Sheet also includes:
Brightness detection module, for the brightness value of test fluid crystal device；
Wherein, described brightness detection module is connected with processing module and the first test module.
The verifying unit of a kind of liquid crystal indicator brightness the most according to claim 6, it is characterised in that described brightness impression
Answering unit is silicon cell, and luminance signal can be amplified and carried out luminance signal by wave filter by described operational amplifier
Filtering, generates brightness analogue signal, by analog-digital converter, brightness analogue signal is converted to direct current signal.
The verifying unit of a kind of liquid crystal indicator brightness the most according to claim 6, it is characterised in that described master control
Chip is ARM chip, and described main control chip is connected with liquid crystal indicator by GPIO mouth；Described main control chip passes through GPIO mouth
Being connected with hoistable platform, described hoistable platform is for adjusting the distance of brightness impression unit and liquid crystal indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610475155.XA CN106125356A (en) | 2016-06-24 | 2016-06-24 | The proofreading method of a kind of liquid crystal indicator brightness and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706637A (en) * | 2019-10-28 | 2020-01-17 | 昆山国显光电有限公司 | Display panel brightness compensation method, compensation device and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706637A (en) * | 2019-10-28 | 2020-01-17 | 昆山国显光电有限公司 | Display panel brightness compensation method, compensation device and display device |
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Application publication date: 20161116 |